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Grade 9 - Materials

Click on the texts to see the materials

Semester 1

​

Chapter 1 -

Simple Machine

  • Definition of simple machines

  • Lever arm

  • Incline plane

  • Pulleys

  • Gears

  • Working principle of simple machines

  • Mechanical advantage of simple machines

 

Chapter 2 -

Static Electricity

  • Charging and discharging

  • Explaining static electricity

  • Electric fields and electric charge

​​

Chapter 3 -

Electrical Quantities

  • Current

  • Electromotive forces

  • Potential difference

  • Resistance

  • Electrical working

​

​

​​

Semester 2

 

Chapter 4 - 

Electric Circuit

  • Circuit components

  • Combinations of resistors

  • Electrical safety

​

Chapter 5 - 

Magnetism

  • Permanent magnets

  • Magnetic fields

​​

Chapter 6 - 

Electromagnetism

  • The magnetic effect of a current

  • Force on a current-carrying conductor

  • Magnetic force on a current-carrying coil - The D.C. motor

​​

Chapter 7 - 

Electromagnetic Induction

  • Generating electricity

  • Electromotive force (e.m.f)

  • Alternating current (A.C.) generator

  • Power lines and transformers

  • How transformers work

Videos

Semester 1

​

Chapter 1 -

Simple Machine

 

Chapter 2 -

Static Electricity

​​

Chapter 3 -

Electrical Quantities

​

​

​​

Semester 2

 

Chapter 4 - 

Electric Circuit

​

Chapter 5 - 

Magnetism

​​

Chapter 6 - 

Electromagnetism

​​

Chapter 7 - 

Electromagnetic Induction

Slides

Semester 1

​

Chapter 1 -

Simple Machine

  • Definition of simple machines

  • Lever arm

  • Incline plane

  • Pulleys

  • Gears

  • Working principle of simple machines

  • Mechanical advantage of simple machines

 

Chapter 2 -

Static Electricity

  • Charging and discharging

  • Explaining static electricity

  • Electric fields and electric charge

​​

Chapter 3 -

Electrical Quantities

  • Current

  • Electromotive forces

  • Potential difference

  • Resistance

  • Electrical working

​

​

​​

Semester 2

 

Chapter 4 - 

Electric Circuit

  • Circuit components

  • Combinations of resistors

  • Electrical safety

​

Chapter 5 - 

Magnetism

  • Permanent magnets

  • Magnetic fields

​​

Chapter 6 - 

Electromagnetism

  • The magnetic effect of a current

  • Force on a current-carrying conductor

  • Magnetic force on a current-carrying coil - The D.C. motor

​​

Chapter 7 - 

Electromagnetic Induction

  • Generating electricity

  • Electromotive force (e.m.f)

  • Alternating current (A.C.) generator

  • Power lines and transformers

  • How transformers work

Exercises

Semester 1

​

Chapter 1 -

Simple Machine

  • Definition of simple machines

  • Lever arm

  • Incline plane

  • Pulleys

  • Gears

  • Working principle of simple machines

  • Mechanical advantage of simple machines

 

Chapter 2 -

Static Electricity

  • Charging and discharging

  • Explaining static electricity

  • Electric fields and electric charge

​​

Chapter 3 -

Electrical Quantities

  • Current

  • Electromotive forces

  • Potential difference

  • Resistance

  • Electrical working

​

​

​​

Semester 2

 

Chapter 4 - 

Electric Circuit

  • Circuit components

  • Combinations of resistors

  • Electrical safety

​

Chapter 5 - 

Magnetism

  • Permanent magnets

  • Magnetic fields

​​

Chapter 6 - 

Electromagnetism

  • The magnetic effect of a current

  • Force on a current-carrying conductor

  • Magnetic force on a current-carrying coil - The D.C. motor

​​

Chapter 7 - 

Electromagnetic Induction

  • Generating electricity

  • Electromotive force (e.m.f)

  • Alternating current (A.C.) generator

  • Power lines and transformers

  • How transformers work

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